Search icon CANCEL
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
Angular Services

You're reading from   Angular Services -

Arrow left icon
Product type Paperback
Published in Feb 2017
Publisher Packt
ISBN-13 9781785882616
Length 294 pages
Edition 1st Edition
Languages
Tools
Arrow right icon
Toc

Table of Contents (9) Chapters Close

Preface 1. Setting Up the Environment 2. Introducing Wire-Frames FREE CHAPTER 3. The Collector Service - Using Controllers to Collect Data 4. The Rating Service - Data Management 5. The Notifier Service - Creating Cron Jobs in Angular 6. The Evidence Tree Builder Service - Implementing the Business Logic 7. The Report Generator Service - Creating Controllers to Set Report Template 8. The Accuracy Manager Service - Putting It All Together

Updating the collector component


To see a service in action, first let's update our previous wire-frame and modify the template. Let's say we need to see a list of news headlines which we can select among them and (later in Chapter 4, The Rating Service – Data Management) decide which ones have the higher value (rate) for investigation.

Showing a list of news headlines means we have to implement a mechanism which loops through the available items and displays them. Open the Collector component first and create new properties as follows:

// app/collector/collector.component.ts 
import {Component} from '@angular/core'; 
@Component({ 
  selector: 'sh-collector', 
  templateUrl: './collector.html' 
}) 
 
export class CollectorComponent { 
  caption = "Some news worth investigating"; 
  headlines  = [ 
    "Lorem ipsum dolor sit amet",  
    "consectetuer adipiscing elit",  
    "Integer tincidunt Cras dapibus", 
    "Quia dolori non voluptas " 
  ]; 
} 

For now just use the hard-coded data. We...

lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at €18.99/month. Cancel anytime